Relevant bibliographies by topics / Sedimentation and deposition – Vermont

Academic literature on the topic 'Sedimentation and deposition – Vermont'

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Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Sedimentation and deposition – Vermont"

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Brakenridge, G. Robert, Peter A. Thomas, Laura E. Conkey, and Jane C. Schiferle. "Fluvial Sedimentation in Response to Postglacial Uplift and Environmental Change, Missisquoi River, Vermont." Quaternary Research 30, no. 2 (September 1988): 190–203. http://dx.doi.org/10.1016/0033-5894(88)90023-3.

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Three lithologically distinct alluvial units of Holocene age can be distinguished along trenched cross sections of the Missisquoi valley bottom. The oldest is of early Holocene age, and the associated floodplain had aggraded to nearly its present level by 8000 14C yr B.P. At that time, early Archaic projectile points were deposited in a fire hearth 50 cm below the surface. Abandonment of this floodplain was followed by the development of an A-E-Bt soil profile. Accumulation of a younger floodplain had begun by 6400 14C yr B.P. and local sedimentation persisted to ca. 500 14C yr B.P., as indicated by radiocarbon dates of buried woody debris (including large logs) and of charcoal. Alluvium of the modern floodplain began accreting after A.D. 1860 and contains machine-cut square nails, whiteware ceramics, and coal clinker. Previous locations of the river channel can be reconstructed from relict surfaces marked by paleosols, the preserved depositional stratigraphy, and the radiocarbon samples. Immediately after regression of the Champlain Sea from this part of the valley, and before 8000 14C yr B.P., the river incised late Fleistocene marine silts and clays at an average rate of at least 1 m/100 yr. After the interval of downcutting, episodic lateral migration became the dominant process, with the rate varying between 0 and 4 m/100 yr. The early Holocene incision was most likely a lagged response to postglacial crustal rebound, whereas strong soil development and floodplain stability between 8000 and 6400 14C yr B.P. may reflect an independently documented warmer, and perhaps drier, climate in New England at this time. Finally, the post-A.D. 1860 period of active floodplain sedimentation may have been a response to timber clear-cutting, row crop agriculture, and cattle and sheep grazing in the watershed.
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Photiades, A., N. Carras, V. Bortolotti, M. Fazzuoli, and G. Principi. "THE LATE EARLY CRETACEOUS TRANSGRESSION ON THE LATERITES IN VOURINOS AND VERMION MASSIFS (WESTERN MACEDONIA, GREECE)." Bulletin of the Geological Society of Greece 40, no. 1 (June 8, 2018): 182. http://dx.doi.org/10.12681/bgsg.16510.

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Three stratigraphical sections from eastern Vourinos (Rhodiani area) to eastern Vermion massifs revealed the same age of the latérite events affecting the serpentinized ophiolite complex after its emplacement on the Pelagonian domain. All of them consist from their base upwards of serpentinized harzburgite slivers with lateritic unconformities on the top, followed by transgressive upper Lower Cretaceous neritic limestones. At Kteni locality (Rhodiani area), a laterite horizon, lying on top of serpentinites, is covered by transgressive neritic limestones with Salpingoporella urladanasi, assigning a Barremian - Albian age, followed by Orbitolinidae limestones. At Tsimodia locality (NNW to the previous), the latente horizon, lying on karstified Upper Jurassic reef limestones (which are the top member of a carbonate platform body tectonically lying on the ophiolites), is trans gres s ively overlain by iron-rich pisolith levels and Aptian limestones of the wackes tone-muds tone type, also containing Salpingoporella urladanasi, followed by Cenomanian Orbitolina limestones. Finally, the third examined locality, further north-eastward to the previous, is situated at the eastern slopes of Vermion massif and more precisely at the NWpart of Koumaria village. There, it can again be observed that the lateritized serpentinite slivers are overlain transgress ively by neritic limestones with Salpingoporella urladanasi, passing upwards into Upper Cretaceous recrystallized limestones with Orbitolinidae and rudist fragments and, finally, toflysch deposition. These features allow to recognize that the emersion and the consecutive lateritization of the thrust-emplaced ophiolites in Vourinos and Vermion massifs in the northern Pelagonian domain, starting from the Latest Jurassic, was followed by a marine transgression beginning from the Barremian - Albian, firstly under restricted and brackish carbonate platform conditions, marked by the presence of the dasycladalean alga Salpingoporella urladanasi, followed by normal salinity carbonate platform conditions. The neritic sedimentation was stable until the Early Cenomanian. Subsequently, a deepening, earlier at Vourinos and later at Vermion, resulted in deposition of pelagic and turbiditic carbonates and then offlysch.
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Keeler, Gerald J., Lynne E. Gratz, and Khalid Al-wali. "Long-term Atmospheric Mercury Wet Deposition at Underhill, Vermont." Ecotoxicology 14, no. 1-2 (March 2005): 71–83. http://dx.doi.org/10.1007/s10646-004-6260-3.

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Stovin, Virginia R., and Adrian J. Saul. "Sedimentation in Storage Tank Structures." Water Science and Technology 29, no. 1-2 (January 1, 1994): 363–72. http://dx.doi.org/10.2166/wst.1994.0684.

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Although storage tanks provide an effective means of reducing the magnitude and frequency of combined sewer overflow discharges, and thereby of alleviating urban watercourse pollution, poorly designed storage structures frequently suffer from maintenance problems arising from sedimentation. The development of design guidelines that optimise the self-cleansing operation of storage structures is clearly a priority for urban drainage research. This paper describes a system that has been developed to study sediment deposition in laboratory model-scale storage structures. The patterns of deposition resulting from a selection of flow regimes are described, and the need for time-varying and time series storm tests is highlighted. Sedimentation patterns are shown to predominantly depend on the flow field, and the critical bed shear stresses for deposition and erosion in the model situation are identified. Hence, the potential application of numerical models to the design problem is discussed.
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Bonnas, Sylvia, Jan Tabellion, and Jürgen Haußelt. "Effect of Particle Size Distribution and Sedimentation Behaviour on Electrophoretic Deposition of Ceramic Suspensions." Key Engineering Materials 314 (July 2006): 69–74. http://dx.doi.org/10.4028/www.scientific.net/kem.314.69.

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By systematic interaction of sedimentation and electrical field in electrophoretic deposition the particle size distribution of the deposited green body can be influenced. This can be employed for producing coatings with a very smooth surface by deposition of only the nanosized fraction of a conventional powder with broad or non-monomodal size distribution, thus avoiding preceding classification. In this paper, the preparation of stabilised slurries is described focussing on the criteria particle size distribution, zeta-potential and sedimentation behaviour. The effectiveness of the interaction of sedimentation and electrophoretic deposition is to be shown.
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Kerkweg, A., J. Buchholz, L. Ganzeveld, A. Pozzer, H. Tost, and P. Jöckel. "Technical Note: an implementation of the dry removal processes DRY DEPosition and SEDImentation in the Modular Earth Submodel System (MESSy)." Atmospheric Chemistry and Physics Discussions 6, no. 4 (July 24, 2006): 6853–901. http://dx.doi.org/10.5194/acpd-6-6853-2006.

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Abstract. We present the submodels DRYDEP and SEDI for the Modular Earth Submodel System (MESSy). Gas phase and aerosol dry deposition are calculated within DRYDEP, whereas SEDI deals with aerosol particle sedimentation. Dry deposition velocities depend on the near-surface turbulence and the physical and chemical properties of the surface cover (e.g. the roughness length, soil pH or leaf stomatal exchange). The dry deposition algorithm used in DRYDEP is based on the big leaf approach and is described in detail within this Technical Note. The sedimentation submodel SEDI contains two sedimentation schemes: a simple upwind zeroth order scheme and a first order approach.
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Kerkweg, A., J. Buchholz, L. Ganzeveld, A. Pozzer, H. Tost, and P. Jöckel. "Technical Note: An implementation of the dry removal processes DRY DEPosition and SEDImentation in the Modular Earth Submodel System (MESSy)." Atmospheric Chemistry and Physics 6, no. 12 (October 12, 2006): 4617–32. http://dx.doi.org/10.5194/acp-6-4617-2006.

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Abstract. We present the submodels DRYDEP and SEDI for the Modular Earth Submodel System (MESSy). Dry deposition of gases and aerosols is calculated within DRYDEP, whereas SEDI deals with aerosol particle sedimentation. Dry deposition velocities depend on the near-surface turbulence and the physical and chemical properties of the surface cover (e.g. the roughness length, soil pH or leaf stomatal exchange). The dry deposition algorithm used in DRYDEP is based on the big leaf approach and is described in detail within this Technical Note. The sedimentation submodel SEDI contains two sedimentation schemes: a simple upwind zeroth order scheme and a first order approach.
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Brynn, David J., and John C. Clausen. "Postharvest Assessment of Vermont's Acceptable Silvicultural Management Practices and Water Quality Impacts." Northern Journal of Applied Forestry 8, no. 4 (December 1, 1991): 140–44. http://dx.doi.org/10.1093/njaf/8.4.140.

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Abstract Seventy-eight recently completed timber harvesting operations in Vermont were evaluated for Acceptable Management Practice (AMP) compliance, soil erosion extent, and water quality impacts using a systematic, one-day examination of each site. Evaluations of water quality impacts and soil erosion were conducted on the portions of the transportation network and streams that could be most heavily affected by the timber harvesting operation. Increased stream sedimentation was observed on 46% of the operations with streams. Woody debris impacts occurred on 65% of the operations with streams. AMP compliance was over 90% for protective strip maintenance and stream avoidance, but soil erosion control practices on truck roads and skid trails commonly failed to meet AMP recommendations. Soil erosion was very limited on truck roads, skid trails, and log landings. Although the Vermont operations often only partially complied with the AMPs, minimal soil erosion and water quality impacts were observed. North. J. Appl. For. 8(4):140-144.
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YU, C. P., B. ASGHARIAN, and B. M. YEN. "Impaction and Sedimentation Deposition of Fibers in Airways." American Industrial Hygiene Association Journal 47, no. 2 (February 1986): 72–77. http://dx.doi.org/10.1080/15298668691389388.

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Campos, Jody, Iran Eduardo Lima Neto, Ticiana Marinho Studart, and José Nilson Beserra Campos. "Influence of sediment distribution on the relationships among reservoir yield, spill, and evaporation losses." Engenharia Sanitaria e Ambiental 23, no. 5 (October 2018): 849–56. http://dx.doi.org/10.1590/s1413-41522018177058.

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ABSTRACT This study shows how the sedimentation process in reservoirs affects the yield-spill-evaporation losses in reservoirs of Ceará State, Brazilian Northeast. Reservoirs are assumed to have, initially, inverted conical shape. Three forms of sedimentation were investigated: type 1, with deposition occurring parallel to the wetted perimeter; type 2, deposition distributed proportionally to the water depth; and, type 3, deposition concentrated in the reservoir bottom. These sedimentation patterns were found in many reservoirs in Ceará, with capacity ranging from about 0.5 to 100 hm3. Nevertheless, type 2 pattern was the most frequent. In this paper, five large reservoirs, over 100 hm3, were studied using Monte Carlo approach, and considering the silting over the time horizon. It was found that sediment distribution can significantly affect the yield-spill-evaporation trade-off on large reservoirs. Type 1 results have the lowest impact on reservoir yield, followed by type 2 and type 3. For Cedro reservoir, the yield would go to zero in 2115, assuming a type 3 deposition pattern. These results reinforce the need for monitoring sedimentation in large reservoirs in the Brazilian semiarid region. In addition, this study provides a relatively simple methodology to predict the impact of siltation on reservoir yield-spill-evaporation relationships, for the three most found patterns of sedimentation.
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Dissertations / Theses on the topic "Sedimentation and deposition – Vermont"

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van, der Vegt Paul. "Glacial systems sedimentation and tunnel valleys." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610766.

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Casarim, Felipe M. Lockaby Bruce Graeme. "Legacy sediments in southeastern United States coastal plain streams." Auburn, Ala., 2009. http://hdl.handle.net/10415/1976.

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Roop, Heidi Anne. "Sedimentation in a proglacial lake : interpreting intra- and inter-annual sedimentation in Linnévatnet, Spitsbergen, Norway /." Connect to online version, 2007. http://ada.mtholyoke.edu/setr/websrc/pdfs/www/2007/235.pdf.

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Undergraduate honors paper--Mount Holyoke College, 2007. Dept. of Earth and Environment.
Includes one CD-Rom appendix of 2005-2006 grain size data. Includes bibliographical references (leaves 125-129).
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Taylor, Kelly Lynne. "Beach sediments : a source of dissolved organic carbon and nitrogen species to the coastal ocean /." Electronic version (PDF), 2005. http://dl.uncw.edu/etd/2005/taylork/kellytaylor.pdf.

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Babault, Julien. "Dynamique de l'érosion dans une chaîne de montagnes : influence de la sédimentation de piedmont, l'exemple des Pyrénées /." Rennes, France : Université de Rennes I, Campus de Beaulieu, 2004. http://www.geosciences.univ-rennes1.fr/biblio/edition/MGR-Babault.htm.

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Elsner, Paul Heinrich. "Monitoring intertidal sedimentation dynamics using airborne imaging spectroscopy." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609749.

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Kattah, Senira da Silva. "Controls on deposition and resulting stratal architecture of coarse-grained alluvial and near-shore facies associations /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Shi, Shaozhong. "Observational and theoretical aspects of tsunami sedimentation." Thesis, Coventry University, 1995. http://curve.coventry.ac.uk/open/items/0a4c8219-19e9-a6c2-4417-440b0e84702e/1.

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This dissertation presents the detailed results of investigations into the coastal geomorphological effects and sedimentation processes associated with a recent large tsunami event which took place on the 12th December 1992 in Flores, Indonesia, and the stratigraphical and sedimentological study of a widespread sand layer preserved in coastal sedimentary sequences along the eastern coast of Scotland representing a low-frequency, high-energy marine event, which took place at circa 7,000 radiocarbon years B.P. With modern alalogues, established in this dissertation, of both tsunami and storm surge sedimentary characteristics and sedimentation processes as the key, together with high-resolution sedimentological evidence obtained from the circa 7,000 radiocarbon years B. P. event, competing hypotheses of the likely causes of the marine flooding by either a tsunami or storm surge event are tested. It is concluded that the circa 7,000 B. P. marine flooding event was a tsunami, believed to have been generated by one of the world's largest submarine landslides in the Norwegian Sea - the Second Storegga Slide. The particle size composition of tsunami sediments is found to vary from well sorted to poorly sorted and is controlled by both the characteristics of the source sedement (local coastal sediments) and sedimentation processes associated with tsunami inundation. Tsunami sediments deposited on land are believed to form continuous and discontinuous sedimentary sheets ascending up to levels distinctively higher than contemporary sea levels and to contain a general landward-fining trend and multiple sets of grading (fining-upward) sequences, reflecting spatial changes in particle size composition. A conceptual model of coastal tsunami sedimentation is established including processes of seaward and landward sediment movements, episodic rapid deposition, sediment accumulation and erosion.
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Lorrey, Andrew M. "Distribution of Patterned Ground and Surficial Deposits on a Debris-covered Glacier Surface in Mullins Valley and Upper Beacon Valley, Antarctica." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/LorreyAM2002.pdf.

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Condon, Aiko Kondo. "Investigation of zinc uptake processes by manganese-oxide-coated sediments from a mining-contaminated stream, Pinal Creek, Arizona." Thesis, The University of Arizona, 2003. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0081_sip1_w.pdf&type=application/pdf.

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Books on the topic "Sedimentation and deposition – Vermont"

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1926-, Harbaugh John Warvelle, ed. Simulating clastic sedimentation. New York: Van Nostrand Reinhold, 1989.

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Erosion and sedimentation. Cambridge: Cambridge University Press, 1995.

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Konieczki, A. D. Streamflow and sediment data collected to determine the effects of a controlled flood in March and April 1996 on the Colorado River between Lees Ferry and Diamond Creek, Arizona. Tucson, Ariz: U.S. Geological Survey, 1997.

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Khobragade, S. D. Sedimentation in lakes. Roorkee: National Institute of Hydrology, 1994.

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Berkas, Wayne R. Sedimentation of Lake Taneycomo, Missouri, 1913-1987. Rolla, Mo: Dept. of the Interior, U.S. Geological Survey, 1989.

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Essig, Don A. Clark Fork damage assessment: Bed sediment sampling and chemical analysis report. Missoula?: University of Montana?, 1992.

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Renn, Danny E. Sedimentation in Versailles Lake, Ripley County, southeastern Indiana, 1956-88. Indianapolis, Ind: U.S. Dept. of the Interior, U.S. Geological Survey, 1991.

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Bennett, Sean J. Sediment quality issues within a flood control reservoir, Little Tallahatchie County, MS. Oxford, Miss: U.S. Dept. of Agriculture, Agricultural Research Service, National Sedimentation Laboratory, Channel and Watershed Processes Research Unit, 2001.

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K, Hobday David, ed. Terrigenous clastic depositional systems: Applications to fossil fuel and groundwater resources. 2nd ed. Berlin: Springer, 1996.

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Jordan, Clifton F. The sedimentology of Kepulauan Seribu: A modern patch reef complex in the West Java Sea, Indonesia. Jakarta, Indonesia: Indonesian Petroleum Association, 1998.

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Book chapters on the topic "Sedimentation and deposition – Vermont"

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Lisitzin, Alexander P. "Silica Deposition." In Oceanic Sedimentation, 285–320. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1002/9781118665008.ch9.

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Eisma, D. "Supply and Deposition of Suspended Matter in the North Sea." In Holocene Marine Sedimentation in the North Sea Basin, 415–28. Oxford, UK: Blackwell Publishing Ltd., 2009. http://dx.doi.org/10.1002/9781444303759.ch29.

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Bonilla, L. L., and Y. Farjoun. "Minisymposium Precipitation, Deposition and Sedimentation of Particles in Fluid Flow." In Progress in Industrial Mathematics at ECMI 2008, 453–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12110-4_70.

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Demchenko, R. I., M. J. Zheleznyak, and L. A. Koziy. "Modelling of Sedimentation and Radionuclides Deposition in a Bottom Trap." In Computational Methods in Water Resources X, 1341–48. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-010-9204-3_162.

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Bonnas, Sylvia, Jan Tabellion, and Jürgen Hausselt. "Effect of Particle Size Distribution and Sedimentation Behaviour on Electrophoretic Deposition of Ceramic Suspensions." In Electrophoretic Deposition: Fundamentals and Applications II, 69–74. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-998-9.69.

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Uenzelmann-Neben, G., and H. Miller. "Congo Fan Neogene and Quaternary Sedimentation: Interplay of Riverine and Current Induced Deposition." In The South Atlantic in the Late Quaternary, 279–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-18917-3_14.

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Haranas, Ioannis, Ioannis Gkigkitzis, George D. Zouganelis, Maria K. Haranas, and Samantha Kirk. "Respiratory Particle Deposition Probability Due to Sedimentation with Variable Gravity and Electrostatic Forces." In Advances in Experimental Medicine and Biology, 3–47. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09012-2_2.

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Taviani, M. "Axial sedimentation of the Red Sea Transitional Region (22°–25° N): pelagic, gravity flow and sapropel deposition during the late Quaternary." In Sedimentation and Tectonics in Rift Basins Red Sea:- Gulf of Aden, 467–78. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-4930-3_25.

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Adam, Elhadi, and Mohammed Suleiman. "Reservoir Sediment Management Practices in Sudan: A Case Study of Khashm El-Girba Dam." In Natural Disaster Science and Mitigation Engineering: DPRI reports, 455–71. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2904-4_18.

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AbstractThe sedimentation problem is a hot issue currently affecting the operations of reservoirs and irrigation networks in Sudan. Most of the rivers that cross Sudanese borders come from the Eastern African Plateau, which acts as a sediment source for the Nile River and its tributaries. Khashm el-Girba Dam (KEGD), which crosses the Atbara River in Eastern Sudan, is a multipurpose dam that was constructed in 1964. The Atbara River is a branch of the Nile River system, and the river carries a large amount of sediment during the flood period. Seven years after construction, in 1970, the dam faced a critical problem that could have led to a disaster; it was discovered that, due to sediment deposition, the water storage was not enough to satisfy the downstream requirements. This study discusses the sediment management practices used in KEGD and their impacts on maintaining the reservoir capacity. Practices including operation policy (OP), trap efficiency (TE), sluicing, sediment sluicing, and flushing operation (FO) were discussed. The adopted management practices succeeded in removing a considerable amount of silt and maintaining the lifetime of the reservoir.
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Sedrique, Zoyem Tedonfack, and Julius Tata Nfor. "Rainfall Variability and Quantity of Water Supply in Bamenda I, Northwest Region of Cameroon." In African Handbook of Climate Change Adaptation, 713–33. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_139.

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AbstractBamenda I municipality found in the humid tropic is endowed with a dense hydrological network which makes it a water catchment for the entire region. Paradoxically, the region still suffers problems of water shortage. This is due to the spatial and temporal variability in rainfall that greatly affects water supply through its impacts on surface and groundwater. For this reason, we came up with the research topic “Rainfall variability and quantity of water supply in Bamenda 1, Northwest Region of Cameroon.” The objective of this study is to examine the manifestations of rainfall variability, and how it affects quantity of water supply in the humid tropics. Rainfall data use for this study comprised of annual, monthly, and daily rainfall over a period of 55 years. Water supply data was made of monthly and annual supply. With these data, a Pearson’s correlation was computed, and it gave a value of 0.701, with a rainfall proportion of 49.14% and 50.86% for other factors. The seasonality and the Standardized Precipitation Index were equally analyzed. At the end of the study, results showed that rainfall events in Bamenda I fluctuates with time and in space. It equally presented a reduction in the number of rainy days from 204 days in 1663 to 155 in 2018. This led to a reduction in length of rainy season and in rainfall amounts. In addition, the area has witnessed sedimentation of riverbeds and water reservoirs due to erosion and deposition during high rainfall peaks. Equally, floods observed during high rainfall episodes have become a potential threat to water infrastructures imposing exceptional water shortages during the rainy seasons. Due to these, actors in the water supply sector are putting in measures to remedy the situation.
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Conference papers on the topic "Sedimentation and deposition – Vermont"

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Bruce, Jonathan D., Jonathan F. Graziane, and Laurie D. Grigg. "HISTORIC CHANGES IN SEDIMENTATION AND PRODUCTIVITY AT TWIN PONDS, VERMONT." In 53rd Annual GSA Northeastern Section Meeting - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018ne-310777.

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Somani, Imshaan, Jonathan Whitten, Sinjae Hyun, and Chong S. Kim. "Effects of Sedimentation on Particle Deposition in the Lung Alveoli." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192934.

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Deposition of inhaled particles in the lung is one of the key factors for assessing toxic effects of airborne pollutant particles on one hand and for evaluating efficacy of inhalant pharmaceutical aerosols on the other side. Due to the geometric complexity and time-dependency of respiratory tracks, the correct prediction of the particle transport and deposition in the lung airway has been studied with experimental and computational approaches. The human alveolar duct, which connects the alveoli to the bronchioles of the lung, is recently the subject of interest within mathematical modeling because of its implications to drug delivery and ingestion of pollutants. Series of computational approaches have been performed to model the entire lung using 1-dimensional and “trumpet” model analyses [1,2]. Although these models represent with reasonable approximation of the regional particle deposition characteristics, they do not account for the local intricacy of particle transport and deposition in the acinus region, consisting of the alveolar duct and alveoli.
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Dunn, Richard K., George E. Springston, Kurt Rogers, and Adam Loeffler. "LACUSTRINE DEPOSITION IN THE ICE-PROXIMAL ENVIRONMENT DURING GLACIAL ADVANCE, A MODEL FROM CENTRAL VERMONT." In 54th Annual GSA Northeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019ne-328545.

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Zhang, N., Z. Charlie Zheng, L. Glasgow, and B. Braley. "Particle Deposition in a Room-Scale Chamber With Particle Injection." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77090.

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A model simulating the deposition of small particles with turbulent transport, sedimentation, and coagulation, is presented. Experimental measurements were conducted in a room-scale chamber using a specially designed sequential sampler. The measured deposition-rate data are compared with the simulation results. Distributions of particle-number density at different times are plotted in several viewing planes to facilitate discussion of the particle distribution patterns.
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Jin, Ming, and DingHua Hu. "Effect of Particle Sedimentation on Sessile Nanofluid Droplet." In ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/mnhmt2019-4053.

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Abstract The effect of particle sedimentation on the evaporation rate of nanofluid droplets on a heated substrate is studied numerically. A two-dimension model of droplet evaporation and deposition using Arbitrary Lagrangian-Eulerian (ALE) method is developed, considering evaporation cooling, two-phase heat transfer, mass diffusion, nanoparticle transport and free surface evolution. The effects of temperature and particle concentration distribution on the total and local evaporation rate of millimeter-sized sessile nanofluid droplets with varying substrate temperature are numerically analyzed. It is shown that the nanoparticle concentration nearby the droplet edge is much higher than that nearby droplet center, and also the sedimentation at droplet edge is much more than that at droplet center. The non-uniform nanoparticle concentration inside droplets leads to a greater temperature difference along the free surface.
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Schroeder, Timothy, Jonathan J. Kim, and Peter Ryan. "WIDESPREAD PFC CONTAMINATION BY AEROSOL DEPOSITION IN BENNINGTON, VERMONT: A LONG-TERM PROBLEM DUE TO RETENTION IN VADOSE ZONE SOILS." In 53rd Annual GSA Northeastern Section Meeting - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018ne-311080.

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Renger, Stefan, Sören Alt, Wolfgang Kästner, André Seeliger, and Frank Zacharias. "Insulation Material Deposition and Distribution in a PWR Fuel Assembly Cluster." In 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icone20-power2012-54410.

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Background of experimental and methodical work is the loss of coolant accident (LOCA) with release of fibrous pipe insulation material. Latest investigations were focused on material deposition and distribution (cross mixing) in the reactor core. Therefore, a 2×2 PWR fuel assembly (FA) cluster was constructed. Four shortened PWR-FA-dummies are provided with separated in- and outlets. Every 16×16 fuel rod dummy consists of 20 control rod simulators, two spacers, FA-head and FA-bottom with a 3.5×3.5 mm integrated debris-screen filter (IDF). The cluster is encased in an acrylic housing for visual observation. It is connected with the test facility “Zittau Flow Tray” (ZFT), a simplified sump model, which allows inclusion and investigation of complex phenomena like material sedimentation in the sump and strainer blockages. A well mixing of air in the fluid was also considered by free jet expansions and flows through full cone-nozzles as well as marginal air entrainments. This Paper includes descriptions of applied measuring techniques (digital image processing, thrubeam laser sensors etc.) and an overview of all considered boundary conditions. Experimental results, aiming at the development, implementation and verification of multiphase flow and strainer models, are presented.
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Tadeu dos Reis, Antonio, Christian Gorini, and Alain Mauffret. "Salt tectonics-sedimentation interaction providing space accommodation for clastics deposition: the Pyreneo-languedocian fan, Gulf of Lions - Western Mediterranean Sea." In 8th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2214-4609-pdb.168.arq_617.

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Tian, L., G. Ahmadi, P. K. Hopke, and Y. S. Cheng. "Transport and Deposition of Particles and Fibers in Human Tracheobronchial Tree." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78284.

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Transport and deposition of ellipsoidal fibers in the human upper airways were analyzed using an asymmetric airway bifurcation model. The trachea and the first two generations (G0–G1) of the tracheobronchial tree were included in the study. The focus of the study was on prediction of transport and deposition of fibers and elongated particles. The laryngeal jet at the trachea entrance was modeled as an effective turbulence disturbance, and Reynolds stress transport turbulence model (RST) was used. For accurate modeling of the near wall airflow, the “two-layer zonal model” was used for boundary consideration, and the turbulence normal fluctuation close to wall is further corrected based on the “quadratic variation near wall model” (Tian and Ahmadi 2007). Lagrangian simulation of ellipsoidal fiber transport and deposition was developed where the coupled translational and rotational motions of the fibers were accounted for. The particle equations of motion included the hydrodynamic drag and torque, shear induced lift, gravitational sedimentation, and turbulence diffusion effects. The simulation results showed that the elongated fiber remained aligned with the main flow most of the time. On short duration occasions, the fibers rotated impulsively along their path. The fiber rotational motion was dependent on fiber geometry and the local flow shear. Fiber deposition pattern and deposition rate in the trachea and the first bifurcation were evaluated, and the results were compared with the experiments.
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Chen, Jun Yan, Pu Zhen Gao, Hai Feng Gu, and Hui Yu Yu. "Effects of Aggregation on Gravity Settlement of Submicron Aerosols Under High Temperature and High Humidity Conditions." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-92065.

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Abstract Coupling aerosol gravity sedimentation mechanism and aggregation effect, considering the correction of submicron particle free path and gas dynamic viscosity in thermal environment, a gravitational sedimentation model suitable for submicron aerosol accompanied by coalescence effect under high temperature and high humidity conditions is established, and the established model is verified by the results of thermal experiments. The aerosol aggregation model is established using the discretization method. By controlling whether the aggregation mechanism occurs in the established model, the influence of aggregation on gravitational settling when steam fraction and ambient pressure are changed is studied. In the study, it was found that the aggregation effect has a nearly 1-fold acceleration effect on the decay constant of the number concentration of submicron aerosols during gravitational sedimentation, and the acceleration effect on the decay constant of the mass concentration can be ignored, but there is an acceleration trend. When submicron aerosols settle under high temperature and high humidity conditions, the number median particle size tends to increase, that is, the increase of the number median particle size by the aggregation effect is greater than the decrease of the number median particle size by gravity sedimentation. After considering the aggregation effect, the number concentration decay constant and the mass concentration decay constant when the submicron aerosol undergoes gravitational sedimentation will decrease with the increase of the ambient pressure, and increase with the increase of the steam fraction. However, the number concentration decay constant changes larger, the mass concentration decay constant has a trend of change, and the change range is relatively weak. In addition, in the sensitivity analysis of the aerosol coalescence and gravitational sedimentation models, it is found that the molecular free path has a greater impact on the calculation results of aerosol coalescence and deposition in a thermal environment than the dynamic viscosity. Moreover, the influence of Brownian coalescence on the aerosol particle size spectrum is much greater than that caused by gravitational coalescence.
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Reports on the topic "Sedimentation and deposition – Vermont"

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Mueller, C., S. J. Piercey, M. G. Babechuk, and D. Copeland. Stratigraphy and lithogeochemistry of the Goldenville horizon and associated rocks, Baie Verte Peninsula, Newfoundland. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328990.

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The Goldenville horizon in the Baie Verte Peninsula is an important stratigraphic horizon that hosts primary (Cambrian to Ordovician) exhalative magnetite and pyrite and was a chemical trap for younger (Silurian to Devonian) orogenic gold mineralization. The horizon is overlain by basaltic flows and volcaniclastic rocks, is intercalated with variably coloured argillites and cherts, and underlain by mafic volcaniclastic rocks; the entire stratigraphy is cut by younger fine-grained mafic dykes and coarser gabbro. Lithogeochemical signatures of the Goldenville horizon allow it to be divided into high-Fe iron formation (HIF; >50% Fe2O3), low-Fe iron formation (LIF; 15-50% Fe2O3), and argillite with iron minerals (AIF; <15% Fe2O3). These variably Fe-rich rocks have Fe-Ti-Mn-Al systematics consistent with element derivation from varying mineral contributions from hydrothermal venting and ambient detrital sedimentation. Post-Archean Australian Shale (PAAS)-normalized rare earth element (REE) signatures for the HIF samples have negative Ce anomalies and patterns similar to modern hydrothermal sediment deposited under oxygenated ocean conditions. The PAAS-normalized REE signatures of LIF samples have positive Ce anomalies, similar to hydrothermal sediment deposited under anoxic to sub-oxic conditions. The paradoxical Ce behaviour is potentially explained by the Mn geochemistry of the LIF samples. The LIF have elevated MnO contents (2.0-7.5 weight %), suggesting that Mn from hydrothermal fluids was oxidized in an oxygenated water column during hydrothermal venting, Mn-oxides then scavenged Ce from seawater, and these Mn-oxides were subsequently deposited in the hydrothermal sediment. The Mn-rich LIF samples with positive Ce anomalies are intercalated with HIF with negative Ce anomalies, both regionally and on a metre scale within drill holes. Thus, the LIF positive Ce anomaly signature may record extended and particle-specific scavenging rather than sub-oxic/redox-stratified marine conditions. Collectively, results suggest that the Cambro-Ordovician Taconic seaway along the Laurentian margin may have been completely or near-completely oxygenated at the time of Goldenville horizon deposition.
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